The reason why the two jurisdictions of common law exist is considered by leading scholars as the result of the combination of two separate sons by nineteenth-century judges: first, the requirement of consideration was at the center of the action of Assumpsit, who had grown up in the Middle Ages and, until 1884, date of the suppression of the old forms of action, the normal complaint of breach of a simple contract in England and Wales remained; Second, the notion of agreement between two or more parties was promoted as the essential legal and moral basis of the treaty in all legal systems by the eighteenth-century French writer Pothier in his treatise on obligations, which was widely read by English judges and jurists (especially after the English translation in 1805). The latter fit well with the fashionable theories of will of the time, particularly John Stuart Mill`s influential ideas on free will, and was stacked on the traditional common law requirement for consideration to base an action in the assumpsit.  The same applies where the consideration is a service that the parties had previously contractually agreed. For example, A agrees to delete B`s house for 500 $US, but halfway through work, A B says he won`t be ready unless B increases the payment to 750 $US. If B agrees and A terminates the contract, B A will still only have to pay the 500 $US initially agreed, A being already contractually obliged to remove the house for this amount. Contract law states that “the counterparty must move away from the promise.” Consideration can be considered as the notion of value offered and accepted by persons or entities entering into contracts. Anything promised by one party of the other in a contract can be treated as “consideration”: for example, if A signs a contract to purchase a car from B for 5,000 $US, A`s counterpart is $US 5,000 and B`s counterpart is the car. The elements of the consideration can be proven in the tenant-lessor contract. First, these parties must discuss the terms of the agreement such as price, condition of the apartment, deposits, etc. Second, each of the parties to the tenant-owner contract must benefit from the contract. The tenant pays the rents and receives housing for the housing, while the landlord makes the apartment available and receives regular rents.
Finally, the accommodation must be worth the amount paid regularly by the tenant. The already existing obligations in the field of employment by agreement depend to a large part on the law of the State. Generally speaking, employment after authorization allows the employer at the job to terminate the employee forever, or even without reason (as long as the reason is not explicitly illegal if it exists) and allows the worker to cancel it for any reason. . . .